All idicators flashing not good

A quick question my Sierra indicators have gone mental. If I indicate left or right they all start flashing like hazzards(I don't have a hazzards switch). I've redone all the Earth's and changed the flasher unit. I don't no if anybody has had the same issue. But I need it sorted for mot. Can anybody help please :'(:'(:'(. I'm not that clued up with electronics.